Retort-coke-oven system.



E. W. KING. RETORT COKE OVEN SYSTEM. APPLICATION FILED IANJZ, 1910.

Patented Sept. 17, 1912 *2 SHEETS-SHEET 1.

uc f/nzw IOLKc $513M af foz uci I E. W. KING.

RETORT COKE OVEN SYSTEM. APPLICATION FILED JAN. 12, 1910.

Patented Sept. 17, 1912 2 SHEETS'ASHEBT 2.

a z! a iilielfigra a m NITED -.srATEs PATENT. onnron EUGENE w. KING, or SYRACUSE, NnwYonK, AssIsNon. TOSEMET-SOLVAY COMPANY,

OF SYRACUSE, 1 TEW YORK,'A CORPORATION OF PENNSYLVANIA.

nnronr conn ovnn SYSTEM.

Specification of Letters Patent.

Application filed January :12, 1910. Serial No. 537,619.

PatentedSept. 17, 1912.

To all whom it may concern-f v Be. it known that I, EUGENE W. citizen of the .United States," residing at Syracuse, in the county of Onondaga and State of New York, have, invented .certain new and useful Improvements in Retort- Cokfe-Oven Systems, of which the following is a specifications My invention relates particularly to retort coke ovens which are heated from. horizontally disposed flues extending the length of the oven and. connected in series, sothat the gases of combustion from any burner traverse the subsequent successive flues be- I fore passing out of the flue system. 3

Heretofore it hasibeenusual to preheat the air required tori-the combustion of the gas in such a. system of flues means'of,

recuperators in'whi'ch the incoming air and the outgoinggases-of combustion flow at the same time through adjacent passages, andalways m'oneldirectionr ;Hence the gas current in 'thehating 'fluesflows' always in one direction, without reversal, which adds largelyto the efiici e'nciy .of such ovens. Regenerators,.through which the incoming air V and the outgoing-gases of combustion flow heating flues. with regenerators that the reversal of the flow of air and gas through the regenerators may be efiected without changing the direction of flow of the gas'current through the heating flues,'thus uniting the advantages of the nnrever'sed gaseous cur-. rent and the high heating eflicleilcy of the regenerators. i

Another object of my improvements is to provide such an arrangement of parts as shall elfect the foregoing result by the use of as few; valves as possible, thus preventing leakage and securing simplicity of construe,

. tion and economy of labor.

. My. 'nvention will be best understood by reference to the. accompanying drawings,

.able manner.

illustrating anembodiment thereof, Figure.

1 v '1 of which shows an end elevation of a block KING, a

of ovens, Fig. 2 shows a longitudinal section through the heating fines, Fig. 3 a crOSs section on line 3 3, Fig; 2; Fig. 4; is a diagrammatic representation of the air supply system, and Flg. 5 a similar representation of the waste gas system.

Referring to the drawings, F, F -1ndicate the'horizont'al heatingflues on one side of one of a block of ovens, O, O,"each one of Whichis heated. froma similarsystem of flues on each side thereof, by means of gas burners, 6,6. Below and parallel to each oven is located a regenerator, R, built of checkered brick work in any usual or suit- Extending along below and at right angles to the ovens is the main waste gas flue, W, into which pass the waste gases from the several sets of heating flues, F, F, by an opening, f, from the bottom flue into a pocket, F under each oven, and thence by a passage, 4, into flue, W. The main Waste gas flue, W, is extended across the end of the block of ovens, as'shown in Fig. 1, and is connected through valvecontrolled ports indicated at "P, P, i with auxiliary wastegas fines, WA,

and WB, which extend along, under the ovens and immediately above the regenerators, R. One of the said auxiliary wastev gas fines, as WA, is connectedto one-half the regenerators, R, as the odd numbered regenerators, as shown in Fig. 5, by passages, p, p, opening directly into the open space above each regenerator and the other auxiliary' waste gas fiue, -lVB, is connected in the same manner by passages, '19, ,p, with the remainder-"of the regenerators.

The air for the combustion of the gas at the burners, 6, Z), enters primarily through flues, G, H, controlled by valves, I, K. One of these flues, as G, is connected by branch pipes, g, g, with the open spaces under half the regenerators, as the odd numbered re-- generators, Fig, 4, and thqbther, H, by branch pipes, It, with the remaining alternate regenerators. Preferably the air supply pipes, G, H, are inclosed within a tunnel,

T. If. desired, tlie.pipes, G, H, may be omitted and the air supplied to the rgener ators, R, directly from the tunnel, T, through valve controlled ass-ages therefrom, so arranged that when t 1e passages leading to half the regenerators are open, these leading to the other half are closed. The air from the 'fiues, G, H, after passing through the regenerators enters one or the other of two auxiliary hot air flues, AA, and AB, one

of which AB, is connectedby passages, a, with theopen space above-one-half the regenerators, as the odd numbered regenerators, Fig.4, and the other, AA, is connected by passages, 0, with the open spaces above the other, as the even numbered regenerators.

The auxiliary hot air fiues,.AA, and AB, are arranged to be connected -.alternately through ports controlled by valves, V, V, with a main hot air flue, A, which extends along under the ovens. The main hot air flue, A, has a permanent open connection with a passage, ,0, under each oven, from which at each end vertical passages, D, I), in the ends of the division walls, lead by.

branches, (1, d, to the air ports opening into the heating flues on each side of the oven.

The manner of operation is as follows:

Assuming that the odd numbered regenerators are being heated by the waste gases of combustion, and that the stored up heat in the even numbered regenerators is'being 'utilized to preheat the incoming air, the valves,

P, K and V are open, while the valves P, I

and V are closed. The course of the gases is then as follows: The waste gases of combustion pass from the heating flues ofeach of the ovens in the block into the main waste gas. flue, W, and thence through open valve,

P, to auxiliary waste gas flue, WA, whence they pass downward to and through each of the odd numbered regenerators, and thence throughthe discharge waste gas flue, SS, through reversing valve, X, to the stack.

At the same time air is entering through the reversing of the regenerators desirable, the

valves"; P, K, V, and X, are closed, and the.

valves P, I, V and Y are opened. The

waste ases of combustion then flow throughfrom t e main waste gas flue, W, to auxiliary waste gas flue, WB, and thence through the even numbered regenerators, and out through the discharge flue, S, by reversing valve, Y, to the stack. At the same time air is passing from air supply pipe, G, to the odd numbered regenerators, and from these to auxiliary hot air flue, AB, and from this to main hot air fine, A, and to the heating flues, as before.

From the foregoing it will be understood that whatever may be the direction of the gaseous flow through the several regenerators, the heated air always flows to the heating fines, F, F, of the ovens from the main hot air line, A, and in one direction only; the waste gases of combustion also flow from the heating fines in a constant direction to the main waste gas flue, W. Thus-no reversal of the gas current through the heating one set of controlling valves operated from one end of the block; or the fines may 'run half the length of the block, there being a corresponding set under each half of the block, in which case there will be two sets of valves operated from each end of the block. In. either case the number of valves is small, .thusjreducing to a minimum the amount of valve leakage and the labor required for their manipulation.

In addition to the advantages incident to providing a continuous flow through the heating fines, and'efiecting this by means of a simple and easily operated valve system, my invention requires the construction of but one regenerator (or less) for each oven, thus enabling the regenerators to be built of etficient size, whereby less frequent reversals of the regenerators are required. More- 'over, since the heated air from half the regenerators is fed in common to the heating fines of all the ovens, and the other half of the regenerators are at the same time heated by the mingled waste gases from all the ovens, a uniformity of operation throughout the block is eifected both in the supply'of air to the heating fiues and in the heating of the regenerators, the advanta e of which will be appreciated by those skilled in the art.

a In case it is desired at any time .to cut any oven out of operation, as for repairs, the corresponding regenerator may be left in' operation, being heated by, waste gases from and assisting in supplying preheated air to the heating fines of the remaining ovens. Also any individual regenerator may be cut out and the corresponding oven left to be operated, if desired, in connection with the remaining regenerators.

What I claim as new and desire to secure by Letters Patent is: r

1. In a-coke oven system the combination of a series of ovens having heating flues on the sides thereof, a single regenerator located under each oven, air su ply pipes con nected the one with one-halt the regenerators and-the other with the remainder thereef, a main hot air'flue connected with the heating flues of all the ovens, two auxiliary nately with said main hot air flue and hava ing permanent connections the one with one- -half the 'regenerators and the other with the remainder thereof, a main waste gas flue connected with the heating fines of all the ovens, and two auxiliary wastegas 'flues arranged ,t-O be alternately connected with.

generators and the other with the remainder thereof. r p I 2. In a coke oven-system the combination of a seriesfio'f coke ovens having heating fines on the sides thereof, a regenerator located under each oven, airsupply pipes arranged to supply air alternately to a portion of said re enerators, a main hot air flue eonnected' with the fheating' fines of all the ,to be alternately connected with said main hot air, flue and having permanent connections the one with a ortion of the regeneratorsand the other with the remainder thereof, a main waste gas flue ed'nnecte'd with theheating fines of all the ovens, two auxiliary Waste gas fiues arranged to be alternately connected with said main gas flue and having permanent connections the one with a portion of the regenerators and the other with the remainder thereof, and discharge waste gas passages'fromthe regenerators.

In testimony whereof, have hereunto 'silbscribed my ary, 'A; D. 1910. p w

v EUGENE W. KING Witnesses: ELIBHALET AUSTIN BARNES, AZZ1E;WALIERS FLINN.

name, this 8th day-"of'Janu- 

